US Patent 10268433 Display system

Provided is a display system capable of displaying the contents of a larger number of windows. In this display, an operator wears a head-mounted display device on his/her head, a first display is on the front side, and the eyes of the operator is directed to the first display. With the head-mounted display device, the operator can see an enlarged image on the right side by a right-side display unit and can see an enlarged image on the left side by a left-side display unit.